package com.kuang.springcloud.controller;

import com.kuang.springcloud.pojo.Dept;
import com.kuang.springcloud.service.DeptService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    @GetMapping("/dept/get/{id}")
    @HystrixCommand(fallbackMethod = "hystrixQueryById")    //当前服务失败调用hystrixQueryById方法
    public Dept queryById(@PathVariable("id")Long id){
        Dept dept = deptService.queryById(id);

        if(dept == null){
            throw new RuntimeException("id为:"+id+"的部门不存在");
        }

        return dept;
    }

    public Dept hystrixQueryById(@PathVariable("id")Long id){
       return new Dept()
               .setDeptno(id)
               .setDname("当前部门不存在------>@Hystrix")
               .setDb_source("no this database in MySQL");
    }

}
